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DSST Physical Sciences Principles

Subjects : dsst, science

Instructions:

Answer 31 questions in 15 minutes.
If you are not ready to take this test, you can study here.
Match each statement with the correct term.
Don't refresh. All questions and answers are randomly picked and ordered every time you load a test.

This is a study tool. The 3 wrong answers for each question are randomly chosen from answers to other questions. So, you might find at times the answers obvious, but you will see it re-enforces your understanding as you take the test each time.

1. When you add heat to a substance - its temperature...
Might stay the same
Total internal energy of an object
Halogen radicals interfering in ozone synthesis
Third principle of Centripetal force

2. The ozone hole results from...
Halogen radicals interfering in ozone synthesis
Difference between the heat supplied and the heat exhausted
Remains unchanged
Decreased

3. Which is not one of the fundamental forces of nature...
Waste heat for secondary uses
Universal
Means less power is transmitted
Total internal energy of an object

4. Electric power companies step up the voltage of generated power for transmission across the country because higher voltage...
Sulfur
Halogen radicals interfering in ozone synthesis
Means less power is transmitted
Disorder

5. Circular motion requires centripetal force
12 miles per hour
Total internal energy of an object
First principle of Centripetal force
Twice the work

6. The larger the centripetal force - the faster an object travels in a circle of a given size
Sulfur
Decreased
Second principle of Centripetal force
Remains unchanged

7. A 5 kg fish that is swimming toward it at a velocity that brings both fish to a halt. What is the speed of the smaller fish?
Decreased
Newtons second principle of Universal Gravitation
5 m/s
Momentum

8. The reason that a spear fisherman cannot see where the fish is actually located is...
Difference in the sped of light in water vs. air
Near a maximum
Halogen radicals interfering in ozone synthesis
Newtons third principle of Universal Gravitation

9. The weight of one kilogram of iron on earth is...
Total internal energy of an object
Decreased
Remains unchanged
Less on the moon

10. In burning coal - what contaminant is of major concern as a pollutant...
Heat of fusion
Near a maximum
Sulfur
Third principle of Centripetal force

11. In a generator - the flow of electrons (current) is created by...
Means less power is transmitted
Newtons second principle of Universal Gravitation
Near a maximum
Movement

12. Raising an auto in a service station requires work. Raising it twice as high requires...
Twice the work
Near a maximum
Remains unchanged
Mechanical - chemical - and radiant energy

13. Electromagnetic radiation can be viewed as...
Increases the energy
Heat of fusion
Waves and particles
Second principle of Centripetal force

14. The theoretical production curve of oil indicates oil production is...
Newtons first principle of Universal Gravitation
Near a maximum
Increasing speed and constant acceleration
Decreased

15. The gravitational force - two masses are directly proportional to the mass of each object
Newtons second principle of Universal Gravitation
Near a maximum
Difference in the sped of light in water vs. air
Second principle of Centripetal force

16. The gravitational force between two masses is inversely proportional to the square of the distance between those two objects.
Newtons second principle of Universal Gravitation
Less on the moon
Halogen radicals interfering in ozone synthesis
Newtons third principle of Universal Gravitation

17. If the mass of a cart full of groceries decreases of half and its speed doubles - the momentum of the cart...
Remains unchanged
Twice the work
Might stay the same
Mechanical - chemical - and radiant energy

18. At a given speed - the centripetal force - the smaller the circle.
Near a maximum
Halogen radicals interfering in ozone synthesis
Third principle of Centripetal force
263 degrees kelvin

19. A temperature of -10 degrees celsius is equivalent to...
Increases the energy
12 miles per hour
263 degrees kelvin
Total internal energy of an object

20. The heat involved in the change of phase of phase from solid ice to liquid water is called...
Newtons third principle of Universal Gravitation
Might stay the same
Heat of fusion
Universal

21. If a charging elephant has kinetic energy - it must also have...
Increasing speed and constant acceleration
First principle of Centripetal force
Waves and particles
Momentum

22. cogeneration uses...
First principle of Centripetal force
Difference in the sped of light in water vs. air
Waste heat for secondary uses
Difference between the heat supplied and the heat exhausted

23. All objects with mass are attracted to another by the gravitational force
5 m/s
Disorder
Third principle of Centripetal force
Newtons first principle of Universal Gravitation

24. From the 50's and to the 70's - the pH of rain in the northeast had..
Total internal energy of an object
Decreased
Means less power is transmitted
12 miles per hour

25. A ship travels 3 miles in 15 minutes what is its speed in miles per hour...
12 miles per hour
Mechanical - chemical - and radiant energy
Movement
Increases the energy

26. The work that a heat engine is able to accomplish is ideally equivalent to the
Twice the work
Difference between the heat supplied and the heat exhausted
Increasing speed and constant acceleration
Remains unchanged

27. Increasing the frequency of light
First principle of Centripetal force
Increases the energy
Second principle of Centripetal force
263 degrees kelvin

28. Heat is the...
Mechanical - chemical - and radiant energy
Total internal energy of an object
Second principle of Centripetal force
5 m/s

29. Electrical energy can be converted to...
Waste heat for secondary uses
Newtons first principle of Universal Gravitation
Mechanical - chemical - and radiant energy
12 miles per hour

30. Entropy refers to...
Disorder
Halogen radicals interfering in ozone synthesis
Universal
Decreased

31. Neglecting air resistance - a ball in free fall near the earth's surface will have...
Increasing speed and constant acceleration
5 m/s
Disorder
Might stay the same